基于PVA的新型生物塑料与安托素功能化:合成,生物化学性质和食品应用
Giuseppe Tancredi Patanè1, Antonella Calderaro1, Stefano Putaggio1
1Department of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 98166 Messina, Italy.
International journal of molecular sciences
|September 28, 2024
概括
这项研究开发了一种绿色方法,从Callistemon citrinus花中提取安托西亚宁,并将其纳入聚乙烯醇生物塑料中. 由此产生的材料显示了可生物降解食品包装的增强性能.
科学领域:
- 绿色化学和材料科学 绿色化学和材料科学
- 生物聚合物的功能化.
- 可持续包装解决方案 可持续包装解决方案
背景情况:
- 转向循环经济的转变需要可持续的替代传统材料.
- 来自自然来源的生物活性分子为材料增强提供了潜力.
- 聚乙醇 (PVA) 生物塑料在某些应用中在耐水性和机械强度方面存在局限性.
研究的目的:
- 开发一种绿色协议,用于从Callistemon citrinus花中净化反素.
- 为了使聚乙醇 (PVA) 生物塑料具有提取的安素的功能.
- 评估安东添加对PVA生物塑料的形态,光学,机械和生物性质的影响,用于潜在的食品包装应用.
主要方法:
- 使用模拟和响应表面方法的绿色安托素净化协议的开发.
- 纯化酸的纳入改性PVA生物塑料在不同的度 (0.10-1.00%) 中.
- 使用FTIR光谱,机械测试,可湿度测量,不透明度评估,抗氧化剂检测和抗菌检测对功能化生物塑料进行全面分析.
主要成果:
- 添加安托素影响了PVA的晶体和无形结构,FTIR和机械试验证实了这一点.
- 增加的抗素含量导致增强的聚合物加厚 (29.92μm至~37μm) 和疏水性 (可湿性从14°至31°).
- 功能化的PVA表现出增加的不透明度,显著的抗氧化活性和显著的抗微生物 (杀菌) 作用对金黄色葡萄球菌.
结论:
- 安东素功能化显著改善PVA生物塑料的特性,解决了对抗水和强度的限制.
- 增强型生物塑料显示出潜力,成为可生物降解食品包装的理想候选者,能够延长食品的保质期.
- 这项研究突出了植物衍生的安托酸的成功利用,用于制造先进的,可持续的材料.
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